Tire tread and buttress



FIG. 1 is a perspective view, partly schematic, of a tire tread and buttress showing the new design, it being understood that the tread pattern is repeated throughout the circumference thereof as shown schematically by solid lines;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof with a portion broken away for convenience of illustration;

FIG. 4 is a perspective view partly schematic of a tire tread and buttress showing a second embodiment of my new design, it being understood that the tread pattern is repeated throughout the circumference thereof as shown schematically by solid lines;

FIG. 5 is a front elevational view of FIG. 4; and

FIG. 6 is a side elevational view of FIG. 4 with a portion broken away for convenience of illustration.

The broken lines in the drawings are for illustrative purposes only. 

The ornamental design for a tire tread and buttress, substantially as shown and described. 